package cn.itcast.dao;

import org.apache.ibatis.annotations.Select;

import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

public interface ReportMapper {
    Map<String, Integer> findMemberCountBySex();

    Map<String, Integer> findMemberCountByAge(Map<String, Date> orders);
}
